40620384 has 72 divisors (see below), whose sum is σ = 132022800. Its totient is φ = 11605248.

The previous prime is 40620383. The next prime is 40620389. The reversal of 40620384 is 48302604.

40620384 is a `hidden beast` number, since 4 + 0 + 620 + 38 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40620383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8059 + ... + 12090.

It is an arithmetic number, because the mean of its divisors is an integer number (1833650).

Almost surely, 2^40620384 is an apocalyptic number.

It is an amenable number.

40620384 is an abundant number, since it is smaller than the sum of its proper divisors (91402416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40620384 is a wasteful number, since it uses less digits than its factorization.

40620384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20172 (or 20161 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40620384 is about 6373.4122728724. The cubic root of 40620384 is about 343.7541961361.

Adding to 40620384 its reverse (48302604), we get a palindrome (88922988).

The spelling of 40620384 in words is "forty million, six hundred twenty thousand, three hundred eighty-four".